title for learn-about section on whelks & relatives in A SNAIL'S ODYSSEY
 


photograph of morphs of whelks Nucella lamellosa from Olga, Orcas Island, San Juan Islands, Washington taken by Trevor Kinkaid, Department of Zoology, University of Washington, Seattle11. Olga, Orcas Island 
This morph of whelk Nucella lamellosa, from a rocky promontory extending from the shoreline, has an extended spire, and shows considerable variation in sculpture and colour.  Colours range from white to dark brown, with banding patterns forming a cline.

 

 

 

 

 

 


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